Name: Call for Blood Cost: 4B CMC: 5 Color: B CID: B Type: Instant -- Arcane Rules Text: As an additional cost to cast this spell, sacrifice a creature. Target creature gets -X/-X until end of turn, where X is the sacrificed creature's power. Set/Rarity: Betrayers of Kamigawa common, Salvat 2005 common Set Code: BOK-C, PSAL-C Legality: Legal in oathbreaker, Legal in paupercommander, Legal in duel, Legal in legacy, Legal in vintage, Legal in penny, Legal in pauper, Legal in commander, Legal in predh, Legal in modern Price: $0.07 Foil price: $0.20